Improved wringing-machine



UNITED STATES PATENT ,Ormea IMPROVED WRINGlNG-MACHINVE.

Specification forming part of Letters Patent No. 36,761, dated October 28, 1362.

.To all whom it may concern:

Be it known that I, CHAELEs H. AMIDON, of Greenfield, in the county of Franklin and State of Massachusetts, have invented certain Improvements in Clothes-wringing Machines, of which the following is a full, clear, and exact description, reference being had to the accompanyingidrawings, making part of this speciiication, in whieh-` p Figure 1 is a perspective view of the machine; Fig. 2, a longitudinalvertical section through the middle of the machine.

My invention consists in the manner in,

which I arrange the cam, block, and spring in connection with a turning shaft that acts as shaft and brace both, and with a rising and falling cross-.bar that conveys the pressure to the wringing-roll, so that said roll may yield freely at either end without undue pressure at the other end.

That others skilled in the art may understand and use my invention, I will proceed to describe the manner in which I have carried it out.

In the said drawings, A A are two standards, held together near the lower end by a wide brace, a. The lower roll, B, has permanent bearings, and is revolved by a crank, C, ou its shaft b. The upper roll, D, has the bear ings of its shaft in movable boxes c, which are.

free to rise and fall in recesses d in the standards. A rigid bar, E, rests on the boxes c. A rubber springfe, and 'a block, f, are attached to the middle of this bar E by a screw,

'g'. A shaft, G, rests at each end in the re cesses cl. It has a cam, h, formed on it which bears on the block f, so that by simply turning this shaft more or less pressure is applied 'to the spring e and through the bar E to the 'boxes of the roll D. That the shaft G may assist in bracing and strengthening the machine and prevent the tops of the standards A A from spreading, a groove, 3, is turned out in it near each end, and a pin, 4, passes through the side of each standard and enters this groove; or the top of each recess d may be so formed. that a portion of the standard will project down into the groove 3. The spring e, being applied at the middle of the length of the bar E, permits one end of the roll D to rise higher than the other` without materially affecting the amount of pressure at any part of the length of the roll.

To the edgeof each standard A A is ata tached byaset-screw, a, a clamp, F. Its lower end, as Well as a portion of the standard, is cut away to form a notch, lo, to fit over the edge of a tub. A shaft, H, has its bearings in the head of each clamp F. It has a cam, t, formed ou it near each end,which, as wthe shaft is revolved, bears againstthe standard and presses out the top end of the clamps and close the lower ends of them tighter onto the tub, the clamps piv. otiug on the set-screws h, which pass through tapering holes in the clamps which` allow of this motion. The set-screws are only used to adjust the notch or opening lc to suit tubs of different sizes; but'the clamping or releasing of the machine is performed by the shaft H and cams A cleat, m, is attached to the side of each clamp to prevent its lateral movement. This is a simple and very convenient method of clamping the machine vto the tub, a partial revolution of the shaft H only being required.

The pressure of the spring e may be regulated in other ways. For example, a rigid bar may extend across from one standard to the other, and a screw o1' wedge may be used to apply the requisite pressure to the block f; but I prefer the shaft G and cam 7ey as being the most convenient to operate.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

In combination with a turning-shaft G, that serves as a shaft and brace both, and the rising-andfalling cross-bar E,the arrangement of the cam h, block'f, and spring e, :intermediately placed on said shaft and cross-bar, for

the purpose of making pressure on the upper roll, E, and allowing said roll to rise at either end without producing undue pressure at the other end, in the manner and for the purpose herein set forth and explained.

CHARLES H. .AMIDON Witnesses:

AsHLEY HOLLAND, LEVI J. GUNN. 

